Topic: lens
Definition:

  • a transparent optical device used to converge or diverge transmitted light and to form images genus of small erect or climbing herbs with pinnate leaves and small inconspicuous white flowers and small flattened pods: lentils (metaphor) a channel through which something can be seen or understood
  • "the writer is the lens through which history can be seen" biconvex transparent body situated behind the iris in the eye
  • its role (along with the cornea) is to focuses light on the retina electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons

    Related tag cloud:

  • lenses
  • camera
  • photography
  • contact lenses
  • optical
  • photo
  • contact lens
  • eye
  • glasses
  • optics
  • nikon
  • vision
  • cameras
  • film
  • eyewear
  • contact
  • canon
  • video
  • contacts
  • eyes
  • minolta
  • Resources:

    Utne Reader Online
    Daily guide to the most original ideas and writing on relevant issues taken from 2000 sources. Includes online discussion forum.
    http://www.utne.com/

    Contact Lens Spectrum
    Explores the preliminary evaluation of prospective contact lens patients.
    http://www.clspectrum.com/

    PBS Online
    This Web site from the Public Broadcasting Service (PBS) features companion Web sites for nearly 250 PBS programs and specials, as well as seven online neighborhoods that aggregate content by genre and interest.
    http://www.pbs.org

    Lens.com
    Retailer of brand name contact lenses.
    http://www.lens.com/